linux-kernel - Re: [PATCH v3 03/33] ring-buffer: Add interface for setting absolute time stamps

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Message-ID: <20171004131430.6e459b0a@gandalf.local.home>
Date:   Wed, 4 Oct 2017 13:14:30 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Tom Zanussi <tom.zanussi@...ux.intel.com>
Cc:     tglx@...utronix.de, mhiramat@...nel.org, namhyung@...nel.org,
        vedang.patel@...el.com, bigeasy@...utronix.de,
        joel.opensrc@...il.com, joelaf@...gle.com,
        mathieu.desnoyers@...icios.com, baohong.liu@...el.com,
        rajvi.jingar@...el.com, linux-kernel@...r.kernel.org,
        linux-rt-users@...r.kernel.org
Subject: Re: [PATCH v3 03/33] ring-buffer: Add interface for setting
 absolute time stamps

On Fri, 22 Sep 2017 14:59:43 -0500
Tom Zanussi <tom.zanussi@...ux.intel.com> wrote:

> +	/*
> +	 * New timestamps may not be consistent with the previous setting.
> +	 * Reset the buffer so that it doesn't have incomparable timestamps.

I would like to make the ring buffer robust enough to handle both. Can
this be done?

-- Steve

> +	 */
> +	tracing_reset_online_cpus(&tr->trace_buffer);
> +